Success Homeschool

Year 4 Mathematics · Chance and likelihood

Name: ______________________

Date: ____________

1. How would you describe the chance of rolling a 7 on a standard six-sided die?
- ☐ (a) Certain
- ☐ (b) Likely
- ☐ (c) Impossible
- ☐ (d) Even chance
2. How would you describe the chance of flipping a coin and getting heads?
- ☐ (a) Impossible
- ☐ (b) Even chance
- ☐ (c) Certain
- ☐ (d) Unlikely
3. A bag holds 9 red marbles and 1 blue marble. How would you describe the chance of picking a red marble without looking?
- ☐ (a) Unlikely
- ☐ (b) Impossible
- ☐ (c) Likely
- ☐ (d) Even chance
4. Which of these events is certain?
- ☐ (a) Rolling a 6 on a six-sided die
- ☐ (b) Rolling a number less than 7 on a six-sided die
- ☐ (c) Flipping tails on a coin
- ☐ (d) Rolling an even number on a six-sided die
5. A spinner has 4 equal sections coloured red, red, red and green. Which colour is the spinner most likely to land on?
6. A bag has 3 yellow counters and 3 blue counters. Using chance words, how likely is it that you pick a yellow counter?
7. How many different outcomes are possible when you roll a standard six-sided die once?
8. A bag has 5 green, 2 orange and 1 purple counter. Which colour are you least likely to pick?

Answer sheet

1. Impossible — A standard die only has the numbers 1 to 6, so rolling a 7 is impossible.
2. Even chance — A coin has two sides, heads and tails, which are equally likely. So heads has an even chance.
3. Likely — 9 of the 10 marbles are red, so picking red will probably happen. It is likely, but not certain.
4. Rolling a number less than 7 on a six-sided die — Every number on a standard die (1 to 6) is less than 7, so this will always happen.
5. Red — 3 of the 4 equal sections are red, so red is the most likely colour.
6. Even chance — Half of the counters are yellow, so picking yellow is just as likely as not picking yellow.
7. 6 — The die could land on 1, 2, 3, 4, 5 or 6, which is 6 outcomes.
8. Purple — There is only 1 purple counter, which is fewer than any other colour.